Hi Darryl,
The default fields can be changed, however if you remove or replace the Audit Title field, then the audits will be saved as "No Audit Title", and will export without a name given to them. This is because the app will only source an audit name from the Audit Title field.
If you replace the Audit Title field with another Field, then whichever field is at the top of the Information Section will be placed first on your Title Page in the report.
If you need any more assistance, please let us know.